wannacry | 369591cac736fa22e6303966bb0996f5f73cf704e8333e65a7d23cf2e8fac7ad

Analysis

max time kernel
150s
max time network
150s
platform
windows10-2004_x64
resource
win10v2004-20240802-en
resource tags

arch:x64arch:x86image:win10v2004-20240802-enlocale:en-usos:windows10-2004-x64system
submitted
23-09-2024 22:16

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General

Target

20240923e5dc5e1aa9bd2fb81da698e6e559ec18wannacry.exe
Size

5.0MB
MD5

e5dc5e1aa9bd2fb81da698e6e559ec18
SHA1

42f67ad0772558500517b84b7a51f26b9da5d2fb
SHA256

369591cac736fa22e6303966bb0996f5f73cf704e8333e65a7d23cf2e8fac7ad
SHA512

be54b35fece0e81e3ee5c1e9527a49d77e60b7ff8f53f2e365af9ad1f531c574b3eea9dccd33800f3acb9df79b9527ad46bdcecf8f7f65e57f9018f9be453388
SSDEEP

49152:2nAQqMSPbcBVQej/66SAHvxJM0H9PAMEcaEau3R8yAH1JlAH:yDqPoBhz66SAPxWa9P593R8yAVJ2H

Score

10^/10

wannacry discovery ransomware worm

Malware Config

Signatures

Wannacry
WannaCry is a ransomware cryptoworm.
ransomware worm wannacry
Contacts a large (3290) amount of remote hosts 1 TTPs
This may indicate a network scan to discover remotely running services.
discovery

Network Service Discovery
T1046

Executes dropped EXE 1 IoCs

pid	Process
4928	tasksche.exe

Creates a large amount of network flows 1 TTPs
This may indicate a network scan to discover remotely running services.
discovery

Network Service Discovery
T1046

Drops file in Windows directory 1 IoCs

description	ioc	Process
File created	C:\WINDOWS\tasksche.exe	20240923e5dc5e1aa9bd2fb81da698e6e559ec18wannacry.exe

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	20240923e5dc5e1aa9bd2fb81da698e6e559ec18wannacry.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	20240923e5dc5e1aa9bd2fb81da698e6e559ec18wannacry.exe

Modifies data under HKEY_USERS 5 IoCs

description	ioc	Process
Key created	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\	20240923e5dc5e1aa9bd2fb81da698e6e559ec18wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\ProxyBypass = "1"	20240923e5dc5e1aa9bd2fb81da698e6e559ec18wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\IntranetName = "1"	20240923e5dc5e1aa9bd2fb81da698e6e559ec18wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\UNCAsIntranet = "1"	20240923e5dc5e1aa9bd2fb81da698e6e559ec18wannacry.exe
Set value (int)	\REGISTRY\USER\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\ZoneMap\AutoDetect = "0"	20240923e5dc5e1aa9bd2fb81da698e6e559ec18wannacry.exe

C:\Users\Admin\AppData\Local\Temp\20240923e5dc5e1aa9bd2fb81da698e6e559ec18wannacry.exe
"C:\Users\Admin\AppData\Local\Temp\20240923e5dc5e1aa9bd2fb81da698e6e559ec18wannacry.exe"
1⤵
- Drops file in Windows directory
- System Location Discovery: System Language Discovery
PID:2160
- C:\WINDOWS\tasksche.exe
  C:\WINDOWS\tasksche.exe /i
  2⤵
  - Executes dropped EXE
  PID:4928

C:\Users\Admin\AppData\Local\Temp\20240923e5dc5e1aa9bd2fb81da698e6e559ec18wannacry.exe
C:\Users\Admin\AppData\Local\Temp\20240923e5dc5e1aa9bd2fb81da698e6e559ec18wannacry.exe -m security
1⤵
- System Location Discovery: System Language Discovery
- Modifies data under HKEY_USERS
PID:4344

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Privilege Escalation

Defense Evasion

Credential Access

Discovery

Network Service Discovery

T1046

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Windows\tasksche.exe

Filesize
3.4MB

MD5
13b7e07aeb45ba68879d75d30728cda5

SHA1
5bb5602d674e468eb0b9cae6ea50b96e274fe6ad

SHA256
af91a284f0ced23df9913969a65cd098ae6c0562e1678234183a90d386ed4334

SHA512
dee0b449290da79a6b6e7b677e9bc329491c94a81ba40bb93ae032f57b6bbcbbc41013a83669d7b6dccb7da227fad419407a89da7e6fb608e4d0c878553240d5

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